annena
June 25, 2022, 4:30am
1
Hi everyone, below is my approach to this question. Could anyone help to point out what is wrong with this approach? The correct answer is Turkey.
Compute (USA - Washington) + Ankara = (5 6) - (10 5) + (9 1) = (4 2)
Compute Euclidean distance from (4 2) to all other countries. From this, I chose Japan to be the answer because its Euclidean distance is 1 which is smallest.
Agreed. I was just going to post the same. There is an error in the quiz, correct answer is Japan.
Hi @annena
Please take a look at this answer (also the thread has more clarifications about the subject):
Hi, @Jack_Changfan .
The question is made of two parts:
What country? - (for that use cosine similarity: Turkey 0.9899 vs Japan 0.9839)
What distance? - (Euclidean distance: Turkey 1.41 vs Japan 1)
# country = Ankara(9,1) - Washington(10,5) + USA(5,6) = (4, 2)
# Cosine similarity: country (4, 2); Turkey(3, 1) = 0.9899
(4*3 + 2*1) / ((4**2 + 2**2)**0.5 * (3**2 + 1**2)**0.5)
# Cosine similarity: country (4, 2); Japan(4, 3) = 0.9839
(4*4 + 2*3) / ((4**2 + 2**2)**0.5 * (4**2 + 3**2)**…
Kiril
July 11, 2022, 8:30pm
4
So all you saying is ‘Yes if you use ecludian distance then Ankara is capital of Japan, but if you use cosine similarity Ankara is the capital of Turkey’.
2 Likes
Hi @Kiril
Yes, you are correct, the question should be more explicit about which method to use. The issue is noted and submitted. Thank you!
Problem is still there. I just hit the same thing. I also chose Japan.
